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润滑油孔 | |||
油孔 | |||
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油孔 |
oil hole : 42 phrases in 13 subjects |
Automobiles | 7 |
Biology | 1 |
Chemistry | 1 |
Compressors | 4 |
Drilling | 3 |
Earth sciences | 3 |
Electric machinery | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Mining | 1 |
Oil / petroleum | 4 |
Shipbuilding | 2 |
Technology | 13 |